Network+

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Users


Password


Access


Mickey


ITails?


Full


Pluto


$NoKats


Read


Louie


AWet#!


Read



Users


Password


Access


Millie


#Shorts?


Read


Mickey


MylEars?


Read


Louie


AWet#l


Full



FIGURE 1.3 A peer-to-peer network



Mickey


Louie


Users


Password


Access


Users


Password


Access


Millie


/Shorts?


Read


Millie


/Shorts?


Read


Pluto


&LittleTail!


Full


Pluto


&LittleTail!


Full


Louie


AWet#!


Full


Mickey


&&Boss!@


Full


Client/Server Network


In contrast to a peer-to-peer network, a client/server network uses a network operating system designed to manage the entire network from a centralized point, which is the server. Clients make requests of the server, and the server responds with the information or access to a resource.


Client/server networks have some definite advantages over peer-to-peer networks. For one thing, the network is much more organized. It is easier to find files and resources because they are stored on the server. Also, client/server networks generally have much tighter security. All usernames and passwords are stored in the same database (on the server), and individual users can’t use the server as a workstation. Finally, client/server networks have better performance and can scale almost infinitely. It is not uncommon to see client/server networks with tens of thousands of workstations. Figure 1.4 shows a sample client/server network. Note that the server now holds the database of user accounts, passwords, and access rights.

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